I think it's "The Fabric of the Cosmos" http://www.amazon.com/Fabric-Cosmos-Texture-Reality-Penguin-...
Do you happen to know it, and do you happen to have an opinion about the accuracy of it? It appears to be genuinely accurate, but I have reference to know this is true.
From http://www.amazon.com/Fabric-Cosmos-Space-Texture-Reality/dp... :
"Assuming an audience of non-specialists, Greene has set himself a daunting task: to explain non-intuitive, mathematical concepts like String Theory, the Heisenberg Uncertainty Principle, and Inflationary Cosmology with analogies drawn from common experience. For the most part, he succeeds."
If you are very interested, I highly recommend Carlo Rovelli's 'The Order of Time.'[2]
And 'Your Brain is a Time Machine'[3], though I ultimately found it unsatisfying, goes directly at the apparent contradiction between our sense of the 'flow' of time, and the implications of general relativity. Although it doesn't have an answer, it states the problem clearly, and has a lot of other interesting facts about our perceptions of time.
Rovelli has also given some interesting talks on YouTube.
[1] https://www.amazon.com/Fabric-Cosmos-Space-Texture-Reality/d...
[2] https://www.amazon.com/s?k=carlo+rovelli+order+of+time&crid=...
[3] https://www.amazon.com/Your-Brain-Time-Machine-Neuroscience/...